In a New Scientist op-ed, Henry Farrell and Cosma Shalizi take aim at the trendy idea of "nudging" people towards healthy, socially beneficial choices. The authors find the evidence for the effectiveness of nudging isn't supported by the literature, and policy-by-nudging misses the key to good governance: an informed citizenry who are part of the solution, not the problem to be solved.

This points to the key problem with "nudge" style paternalism: presuming that technocrats understand what ordinary people want better than the people themselves. There is no reason to think technocrats know better, especially since Thaler and Sunstein offer no means for ordinary people to comment on, let alone correct, the technocrats' prescriptions. This leaves the technocrats with no systematic way of detecting their own errors, correcting them, or learning from them. And technocracy is bound to blunder, especially when it is not democratically accountable.

As political scientist Suzanne Mettler, from Cornell University in Ithaca, New York, argues, libertarian paternalism treats people as consumers rather than citizens. It either fails to tell people why choices are set up in particular ways, or actively seeks to conceal the rationale. When, for example, Obama's administration temporarily cut taxes to stimulate the economy, it did so semi-surreptitiously to encourage people to spend rather than save.

Mettler uses experiments to show how ordinary people can understand complicated policy questions and reach considered conclusions, as long as they get enough information. This suggests a far stronger role for democratic decision-making than libertarian paternalism allows. People should be given information, and allowed to reach conclusions about their own interests, and how to structure choices to protect those interests. By all means consult experts, but the dialogue should go both ways.

'Nudge' policies are another name for coercion